Journal of Lipid Research, Vol 26, 263-267, Copyright © 1985 by Lipid Research, Inc.
Capillary gas-liquid chromatographic-mass spectrometric measurement of very long chain (C22 to C26) fatty acids in microliter samples of plasma
P Aubourg, PF Bougneres and F Rocchiccioli
In order to quantify accurately the plasma content of very long chain fatty
acids, we have developed a selected ion monitoring gas-liquid
chromatographic-mass spectrometric micromethod which allows all of these
acids (22:0, 24:1, 24:0, 26:1, and 26:0) to be determined simultaneously in
the same 0.5-ml plasma sample; 17:0 and 27:0 fatty acids are used as assay
internal standards. For plasma samples in the range equivalent to the
various very long chain fatty acid physiological concentrations, assay
precision was +/- 2%. The present method has been successfully applied to
the biological recognition of patients with adrenoleukodystrophy, their
heterozygote relatives, and of cerebro-hepato-renal syndrome and neonatal
adrenoleukodystrophy.